Lecture 5: Integumentary System

25 July 2022
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question
Which bone is NOT considered to be part of the cranium?
answer
lacrimal bone
question
identify the suture found between the 2 parietal bones.
answer
sagital suture
question
Which of the following bones is unpaired?
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frontal
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Which cranial bone spans the width of the cranial floor?
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sphenoid
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Which of the following bones do not contain a sinus?
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nasal
question
Identify the location of the ethmoid bone.
answer
In between the orbits
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Identify the landmark that projects superiorly into the floor of the skull and serves as a site of attachment for the meninges.
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crista galli
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Identify the cranial nerve that passes through the olfactory foramina
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The olfactory nerve (CN I)
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Identify the recessed area surrounding the crista galli
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cribriform plates
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Which of theses projections of the ethmoid bone are most visible in the nasal cavity?
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middle nasal conchae
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Which part of the ethmoid bone forms part of the nasal septum?
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perpendicular plate
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The ethmoid bone is a facial bone.
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FALSE. The ethmoid bone is part of the cranium.
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The tiny holes in the cribriform plate are
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olfactory foramina
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The ethmoid bone forms the inferior portion of the nasal septum true or false?
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false
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The ethmoid bone is part of the axial skeleton true or false?
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true
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Which of the following bones is not a facial bone?
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Ethmoid ~ The ethmoid bone forms the area of the cranium between the nasal cavity and the orbits.
question
What bone forms part of the nasal septum?
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vomer
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Which facial bones makeup the central portion of the bridge of the nose?
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nasal
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What is the anatomical name for the facial bones known as "cheekbones"?
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Zygomatic bones
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Which facial bones fuse to form the upper jaw?
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Maxillary
question
Identify the small facial bones found in the medial wall of the orbit.
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lacrimal
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Which facial bones form the roof of the mouth?
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maxillary bones palatine bones
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The occipital bone forms part of the
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cranium
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Identify the location of the occipital bone.
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Posterior surface and base of the cranium
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Name the opening in the occipital bone through which the spinal cord passes
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Foramen magnum
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Identify the area of the occipital bone that articulates with the vertebral column
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Occipital condyles
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Identify the large suture on the posterior surface of the skull at the border of the occipital bone
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Lambdoid
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Identify the location of the sphenoid bone.
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floor of the skull
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Identify the region of the sphenoid bone in contact with the pituitary gland.
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Sella turcica
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Identify the region of the sphenoid bone that contains the optic canal
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lesser wings
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Identify the landmark that is not part of the sphenoid bone
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Olfactory foramina Submit
question
The sella turcica is best described as
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depression
question
The sphenoid bone contains a sinus T or F?
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true
question
The young boxer has sustained a "blowout" fracture of his left orbital complex. The orbit that contains the eye is formed by seven facial bones. Which skull bone forms the roof of the orbit?
answer
the frontal bone
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The orbital rim is strong, composed of thick, protective bone. But the very thin medial wall and floor of the orbit were literally blown out by the intact eyeball itself when the boxer was struck with such a forceful blow. Which bones compose the orbital rim?
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The maxilla and zygomatic bone both articulate with the frontal bone to form the orbital rim.
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Surrounding the orbits are the four paranasal sinuses. What are these structures?
answer
The paranasal sinuses are air-filled chambers lined with mucus-producing epithelium that open into the nasal cavities. Submit
question
The maxilla also frequently sustains fractures from blunt trauma to the face. Which structures support and house the upper teeth in this bone?
answer
the alveolar process
question
What is the name of the first cervical vertebra?
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atlas
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What is the name of the second cervical vertebra?
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axis
question
Identify the articulation site that allows us to nod our head "yes"
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Occipital bone - atlas
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Identify the articulation site that allows us to rotate our head, e.g. shaking the head "no"
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Atlas - axis
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Identify the region of the skull that articulates with the atlas
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Occipital condyles
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Which vertebra lacks both a body and spinous process?
answer
atlas
question
How many lumbar vertebrae are in the vertebral column?
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5
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Which of the following characteristics do not belong to the lumbar region?
answer
Elongated spinous process
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Which region of the vertebral column is immediately superior to the lumbar region?
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thoracic
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Which region of the vertebral column is immediately inferior to the lumbar region?
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sacral
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The shape of the spinous process can be used to help determine if a vertebra is from the lumbar region true or false?
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true
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The lumbar vertebrae are roughly the same size as vertebrae from the rest of the vertebral column true or false?
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false
question
The lumbar vertebrae are found in the lower back true or false?
answer
TRUE. The 5 lumbar vertebrae are located between the thoracic region and the sacrum, making up the lower back.
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The lumbar vertebrae are part of the appendicular skeleton true or false?
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false
question
Identify the bony posterior wall of the pelvis.
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sacrum
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Name the number of vertebrae that fuse together to form the sacrum
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5
question
Identify the region of the sacrum that articulates with the hip bone
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Auricular surface
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Identify the tailbone.
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coccyx
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Identify the typical number of vertebrae that fuse during development to form the coccyx
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3-5
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Which landmark is composed of fused spinous processes?
answer
Median sacral crest Submit
question
Which region of the vertebral column is located superior to the thoracic region and which region is inferior to the thoracic region, respectively?
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Superiorly: cervical and inferiorly: lumbar
question
How many vertebrae comprise the thoracic region of the spine?
answer
12
question
Identify the articulation site for the head of a rib
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Demi-facet
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Which of the following thoracic vertebrae is the largest?
answer
T12 Correct. There are 12 thoracic vertebrae. The size of the individual vertebrae increase from the top of the column to the bottom, therefore the last thoracic vertebra, T12, would be the largest.
question
Identify the articulation site for a tubercle of a rib?
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Transverse costal facet Submit
question
which part of the vertebra is known as the centrum?
answer
body
question
Name the vertebral projection oriented in a median plane.
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Spinous process
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Individual vertebrae articulate with each other forming the vertebral column. Identify the part of a vertebra that articulates immediately with the vertebra below it.
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Inferior articular processes
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Which of the following structures would not be found within a vertebral foramen?
answer
Intervertebral discs
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Identify a lateral projection of a vertebra.
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transverse process
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Which of these regions of the vertebral column would be most accessible from a posterior surgical approach?
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lamina
question
Identify the common name for the clavicle
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collarbone
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Identify the bone that articulates with the clavicle medially.
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Sternum
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Identify the bone that articulates with the clavicle laterally.
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Scapula
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Which region of the clavicle is known as the acromial end?
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lateral
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The inferior surface of the clavicle has a projection called the:
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Conoid process
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The clavicle belongs to which of the following areas?
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Appendicular skeleton
question
Identify the landmark found on the proximal end of the humerus.
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Greater tubercle Submit
question
Identify the depression found on the posterior surface of the distal humerus.
answer
Olecranon fossa
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Identify the region of the humerus that articulates with the ulna, located between the medial epicondyle and capitulum.
answer
Trochlea
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Which of the following landmarks is found on the distal end of the humerus?
answer
Lateral epicondyle
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What part of the humerus articulates with the scapula to form the shoulder joint?
answer
head
question
Which region of the skeleton contains the humerus?
answer
appendicular
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Caitlyn has a supracondylar distal humerus fracture, a true surgical emergency. Besides the humerus, what other bones articulate at the elbow?
answer
the radius and ulna
question
Of all the orthopedic injuries a child can sustain in a "fall on the out-stretched hand" (known as a FOOSH injury), a supracondylar distal humerus fracture is the most difficult to reduce (restore to anatomical position) and maintain in a reduced position during healing. What bone projections compose the condyle of the humerus?
answer
the capitulum and trochlea Submit
question
When Caitlyn arrived at the emergency room, she had no pulse distal to the injury in her arm. Many of the critical nerves and blood vessels to the forearm and hand run along the humerus through the elbow. On the posterior aspect of the humerus is a depression that provides a path for an important large nerve that provides both sensory information and motor control. What is the name of this groove?
answer
radial groove
question
Identify the bones that make up the wrist.
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carpals
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How many carpals make up the wrist?
answer
8
question
Identify the bones that make up the palm of the hand.
answer
Metacarpals
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What type of bones are the phalanges?
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long bones
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How many phalanges are located in the hand?
answer
14
question
Which digit is composed of only two phalanges?
answer
thumb
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Where is the radius located in reference to the ulna?
answer
lateral
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Identify the region of the radius that articulates with the ulna.
answer
head
question
Which of the following regions of the radius help form the wrist joint?
answer
Styloid process
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Which digit is the radius closest to?
answer
1. The radius runs parallel to the ulna on the same side as the thumb
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What type of joint is formed between the radius and ulna?
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pivot
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Identify the type of movement enabled by the articulation between the radius and ulna at the elbow.
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supination
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Where in the skeleton is the ulna located in reference to the humerus?
answer
distal
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Identify the primary region of the ulna that forms the hinge joint with the humerus.
answer
Trochlear notch
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Identify the true statement about the head of the ulna.
answer
Found at the distal end of the bone.
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Identify the projection found on distal end of the ulna.
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Styloid process
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Identify the region of the ulna that articulates with the humerus when the forearm is in full extension.
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Olecranon process
question
Identify the region of the mandible that forms part of the temporomandibular joint.
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Mandibular condyle
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Identify the region of the temporal bone that articulates with the mandible.
answer
Mandibular fossa
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Identify the best description of the mandibular fossa
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A shallow depression
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Identify the best description of the mandibular condyle.
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A projection on the mandible
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Where is the mandibular fossa located?
answer
Inferior surface of the zygomatic process
question
Identify the shield shaped top of the sternum.
answer
Manubrium. The manubrium is the superior most region of the sternum. It articulates with both the clavicle and the first rib.
question
Name the type of connective tissue that anchors the ribs onto the sternum.
answer
Hyaline cartilage
question
Identify the central portion of the sternum.
answer
body
question
What part of the sternum is palpated prior to giving CPR?
answer
Xiphoid Process
question
How many pairs of ribs articulate directly with the sternum?
answer
7
question
Which of the following is a passageway for a major blood vessel in the skull?
answer
jugular foramen
question
The adult hip bone consists of _____ regions.
answer
three
question
Which region of the hip bone articulates with the sacrum?
answer
Auricular surface of the ilium
question
Which landmark of the hip bone can be felt on a hard chair?
answer
Ischial tuberosity
question
Identify the indentation that is inferiorolateral to the auricular surface.
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Greater sciatic notch
question
Which of the following is the largest region of the hip bone?
answer
Ilium
question
Identify the articulation site for the femur.
answer
acetabulum
question
Identify the large hole found in this bone.
answer
obturator foramen
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The ridge like superior edge of the ilium is known as the _____.
answer
Iliac crest
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What region of the vertebral column does the hip bone articulate with?
answer
Sacral region
question
Which bony landmarks can be palpated on the anterior surface of the body, close to the midline?
answer
Pubic tubercles
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The palpable hip bone projections in the front of the body felt when you put your hands on your hips are the posterior inferior iliac spines true or false?
answer
false
question
The projection at the inferior end of the greater sciatic notch is the ischial spine true or false.
answer
true
question
the hip bone is part of the axial skeleton (T/F)
answer
false; the axial skeleton consists of the skull, the vertebral column, and the rib cage
question
Which of the following bone structures is least helpful in determining the sex from a skull?
answer
Location of the sinuses
question
Which of the following descriptions is least likely to be found in a typical female pelvis?
answer
Heart-shaped pelvic outlet
question
Which landmark is found on the anterior surface of the femur?
answer
Patellar surface
question
Identify the region of the femur that forms part of the hip joint.
answer
Head
question
The condition known as a "fractured hip" is most often a break in the femur. Where is the femur particularly susceptible to a fracture?
answer
Neck
question
Identify the landmark that is unique to the femur.
answer
Trochanter
question
Identify the landmark found on the diaphysis of the femur.
answer
Linea aspera
question
Identify the best description for the location of the head of the femur.
answer
Medial and proximal
question
Identify the tarsal that articulates with the tibia and fibula.
answer
talus
question
Name the number of tarsals.
answer
7 ~ The tarsus is made up of 7 bones that compose the ankle and the posterior portion of the foot.
question
Identify the anatomical term for the "heel bone".
answer
Calcaneus
question
Identify the bones that make up the middle portion of the foot.
answer
Metatarsals
question
Which of the following digits contain only 2 phalanges?
answer
1
question
What type of bone is a phalanx?
answer
long ~ the elongated shape of the phalanges make them long bones, even though the phalanges are small in size.
question
The flat surface of the tibia that articulates with the femur is the superior surface of which landmark?
answer
Medial and lateral condyles
question
Identify the bone found lateral to the tibia.
answer
Fibula ~ the tibia and fibula lie parallel to one another between the knee and ankle.
question
Identify the anatomical landmark resulting in a noticeable bump found on the medial surface of the ankle.
answer
Medial malleolus
question
Name bone that articulates with the proximal end of the tibia.
answer
Femur
question
Identify the blunt elevation found on the anterior surface of the tibia between the lateral and medial condyles.
answer
Tibial tuberosity
question
Which part of the leg does the tibia form?
answer
Medial leg